// © Broadcom. All Rights Reserved.
// The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
// SPDX-License-Identifier: Apache-2.0

package library

import (
	"context"
	"flag"
	"fmt"

	"github.com/vmware/govmomi/cli"
	"github.com/vmware/govmomi/cli/flags"
	"github.com/vmware/govmomi/vapi/library"
)

type update struct {
	*flags.ClientFlag

	name string
	desc *string
}

func init() {
	cli.Register("library.update", &update{})
}

func (cmd *update) Register(ctx context.Context, f *flag.FlagSet) {
	cmd.ClientFlag, ctx = flags.NewClientFlag(ctx)
	cmd.ClientFlag.Register(ctx, f)

	f.StringVar(&cmd.name, "n", "", "Library or item name")
	f.Var(flags.NewOptionalString(&cmd.desc), "d", "Library or item description")
}

func (cmd *update) Usage() string {
	return "PATH"
}

func (cmd *update) Description() string {
	return `Update library or item PATH.

Examples:
  govc library.update -d "new library description" -n "new-name" my-library
  govc library.update -d "new item description" -n "new-item-name" my-library/my-item`
}

func (cmd *update) Run(ctx context.Context, f *flag.FlagSet) error {
	if f.NArg() != 1 {
		return flag.ErrHelp
	}

	c, err := cmd.RestClient()
	if err != nil {
		return err
	}

	m := library.NewManager(c)

	res, err := flags.ContentLibraryResult(ctx, c, "", f.Arg(0))
	if err != nil {
		return err
	}

	switch t := res.GetResult().(type) {
	case library.Library:
		lib := &library.Library{
			ID:   t.ID,
			Name: cmd.name,
		}
		if cmd.desc != nil {
			lib.Description = cmd.desc
		}
		t.Patch(lib)
		return m.UpdateLibrary(ctx, &t)
	case library.Item:
		item := &library.Item{
			ID:   t.ID,
			Name: cmd.name,
		}
		if cmd.desc != nil {
			item.Description = cmd.desc
		}
		t.Patch(item)
		return m.UpdateLibraryItem(ctx, item)
	default:
		return fmt.Errorf("%q is a %T", f.Arg(0), t)
	}
}
